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Thread: AMD Trinity Laptop

  1. #701
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    Quote Originally Posted by tensz View Post
    Firstly it was AMD who decided that the A10-4655m should have slow 1333 mhz ram, instead of allowing 1600 mhz just like the other Trinity models.
    Secondly the already slow ram will become even slower when the 512 MB is used up.
    Intentional?
    The DDR3/1333 is not a Trinity issue, the one I am on right now has 1600. Desktop officially supports 1866, laptop is 1600, but both go WAY beyond that.

    As for the video RAM, mine has a 512 limit too, but I have never heard if that is a hard limit. I will ask if I get the chance.

    -Charlie

  2. #702
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    Quote Originally Posted by charlie View Post
    The DDR3/1333 is not a Trinity issue, the one I am on right now has 1600. Desktop officially supports 1866, laptop is 1600, but both go WAY beyond that.

    As for the video RAM, mine has a 512 limit too, but I have never heard if that is a hard limit. I will ask if I get the chance.

    -Charlie
    The 1333MHz limit on the low tdp Trinity chips is not a technical limitation, to save power?
    IT middle management is just like Dungeon Keeper, but with technicians and purchase orders instead of imps and spells

  3. #703
    I always wondered why HP even bothers selling the ENVY Sleekbook with 1600 RAM when officially the 25W A10 and 17W A6 only support 1333, 1333L and 1066U. I have read that even though it uses 1333, the 1600 RAM offers better timings/latencies even if it can't operate at full 1600Mhz? Does anyone know what I'm talking about?
    Acer Aspire V5-122P - 11.6" 1366x768 AUO IPS B116XAN03.2, AMD A6-1450, Radeon 8250, Kingston 2 GB 1066 CL7 1.35 V, Samsung 830 256 GB SSD
    HP ProBook 6475b - Exposed Used Motherboard 684341-001, AMD A10-4600M, Radeon 7660G, ADATA 8 GB 1600 CL11 1.5 V, Micron M510 128 GB M.2 SSD
    Lenovo ThinkPad 11e - 11.6" 1366x768 AUO TN B116XTN02.3, AMD A4-6210, Radeon R3, Hynix/Hyundai HMT451S6BFR8A-PB 4 GB 1600 CL11 1.35 V, Seagate ST500LM021-1KJ152 500 GB 7200 RPM HDD
    Republic Wireless Motorola Moto X 2013

  4. #704
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    Quote Originally Posted by davidricardo86 View Post
    I always wondered why HP even bothers selling the ENVY Sleekbook with 1600 RAM when officially the 25W A10 and 17W A6 only support 1333, 1333L and 1066U. I have read that even though it uses 1333, the 1600 RAM offers better timings/latencies even if it can't operate at full 1600Mhz? Does anyone know what I'm talking about?
    I imagine it's just far cheaper and less of a headache to use the same RAM across your whole range rather than messing with odds and sods
    IT middle management is just like Dungeon Keeper, but with technicians and purchase orders instead of imps and spells

  5. #705
    All Ivy Bridge, Sandy Bridge, 35W Trinity parts are benefit from 1600MHz DDR3 modules, so probably it is simpler and cheaper to buy a big amount of 1600MHz modules than different types...
    By the way HP's 1600MHz quite good surprise with their 1.28V


  6. #706
    That makes sense. Thanks.
    Acer Aspire V5-122P - 11.6" 1366x768 AUO IPS B116XAN03.2, AMD A6-1450, Radeon 8250, Kingston 2 GB 1066 CL7 1.35 V, Samsung 830 256 GB SSD
    HP ProBook 6475b - Exposed Used Motherboard 684341-001, AMD A10-4600M, Radeon 7660G, ADATA 8 GB 1600 CL11 1.5 V, Micron M510 128 GB M.2 SSD
    Lenovo ThinkPad 11e - 11.6" 1366x768 AUO TN B116XTN02.3, AMD A4-6210, Radeon R3, Hynix/Hyundai HMT451S6BFR8A-PB 4 GB 1600 CL11 1.35 V, Seagate ST500LM021-1KJ152 500 GB 7200 RPM HDD
    Republic Wireless Motorola Moto X 2013

  7. #707
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    For them perhaps is cheaper, ?for the consumer?, it's difficult to tell when they sell you all the package.

  8. #708
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    Quote Originally Posted by davidricardo86 View Post
    I always wondered why HP even bothers selling the ENVY Sleekbook with 1600 RAM when officially the 25W A10 and 17W A6 only support 1333, 1333L and 1066U. I have read that even though it uses 1333, the 1600 RAM offers better timings/latencies even if it can't operate at full 1600Mhz? Does anyone know what I'm talking about?
    It is all the same ASIC, so I think it is just a matter of not being able to go above 1333 while keeping in the 25W TDP. If you are aware of this, and design your cooling for the overages, then no problem. Also, you are unlikely to ever hit TDP on a mobile part anyway.

    In the end, I don't see why it wouldn't be possible, it is not a hard limit.

    -Charlie

  9. #709
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    If anything timings are *usually* tighter/faster with lower frequency RAM. I say usually as most 1333/1600MHz stuff these days is the same in all but name and target segment. On a side note I have seen 0, zero, nada, शून्य कुछ भी नहीं performance difference between CL7, CL9 and CL11 DDR1600 in my laptop, using my non scientific benchmarking approach

    If charlie is correct and there is no hard limit, I wonder when we'll see unofficial support for 1866 and beyond for existing Trinity lappies. Afterall it was only last week that there was absolutely no overclocking for Trinity mobile AT ALL, until AMD themselves let us tweak the iGPU
    IT middle management is just like Dungeon Keeper, but with technicians and purchase orders instead of imps and spells

  10. #710
    All that's missing is letting us tweak the CPU side
    Acer Aspire V5-122P - 11.6" 1366x768 AUO IPS B116XAN03.2, AMD A6-1450, Radeon 8250, Kingston 2 GB 1066 CL7 1.35 V, Samsung 830 256 GB SSD
    HP ProBook 6475b - Exposed Used Motherboard 684341-001, AMD A10-4600M, Radeon 7660G, ADATA 8 GB 1600 CL11 1.5 V, Micron M510 128 GB M.2 SSD
    Lenovo ThinkPad 11e - 11.6" 1366x768 AUO TN B116XTN02.3, AMD A4-6210, Radeon R3, Hynix/Hyundai HMT451S6BFR8A-PB 4 GB 1600 CL11 1.35 V, Seagate ST500LM021-1KJ152 500 GB 7200 RPM HDD
    Republic Wireless Motorola Moto X 2013

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